Improvement in ranges



P.RQLLHAUS,JL

Patented iune 6,1871.

No. H5,642. *Egfr PHILIP noLLHAUs, Jn., or NEW Yoan, N. r.

IMPROVEMENT IN RANGES.

peclfication forming part of Letters Patent No.'1l5,642, dated June 6,1871.

I, PHILIP RoLLHAUs, J r., of New York city, in the county of New Yorkand State of New York, have invented certain Improvements in Circulatingthe Heat in Elevated Oven Ranges, of which the following is aspecification:

The object of my invention is to regulate with great facility and nicetythe circulation of heat in elevated oven-ranges so that all the heat, orpart thereof, may be caused eitherto envelopand circulate around thesides, tops, backs, and bottoms of both or one oven in the same range,or only to radiate partly under the bottoms of both or one oven in thesame range, as required and desired.

Figure I is a longitudinal section, front View, of an elevated ovenrangeembodying my invention. Fig. II is a section, side view, of Fig. I. Fig.lII is a top view of the same.

A is the frame of an elevated oven-range. B B are the ovens; C G, theinlets for the heat. D D are flue partitions or Walls shutting ott thedirect draft of the smoke-fines. E E are smoke-dampers; G G, smoke-linescommunicating With the chimney; H H, handles for the dampers; K K,regulating projeotions on the damper-handles.

The heat entering through the inlets C C will-if the dampers E E areshut by pushing in the handles H E so far as they will go, or if intheir place a continuous flue partition or Wallis used by the directionof the draft to the smoke-dues G G-be caused to circulate around andenvelop the sides, tops, backs, and bottoms of the ovens B B. If only apart of the heat entering through the inlets G Gis required to circulatearound and envelop the ovens B B, as described, the smoke-dampers E Eare pulled outby aid of the handles H H so far that the regulatingprojections K K strike against the frame A; a part of the heat willthen, consequently, go direct to the smokelues G G and the temperatureof the ovens be reduced. Should it be found further necessary to cool 0Eand lower the temperature of the ovens B B by preventing any heat tocirculate around the same, the damper-handles H H are still furtherpulled out, so far as they will go, by which act the dampers E E willshut off entirely the draft from the inlets C C to the smoke-fines G G,thereby causing the heat only to radiate against a part ofthe bottom ofthe ovens, and take its course to. aue

provided for the same, under the range, direct to the chimney. It isevident that the heat Will either circulate around and envelop bothovens or only one, as desired, by operating one o r both dampers, asdescribed.

It Will easily be understood that by this arrangement a most perfectcontrol over the heat circulating around and enveloping the ovens can beobtained, and that each smokedamper, by the three movements described,shutting oli' partly or altogether the ports of the fluepartitions,saves another damper, at present necessary to accomplish the sameobject.

Claim.

described.

PHILIP ROLLHAUS, JR.

Witnesses:

A. C. CRONDAL, J oHN BUYER.

